A Girl Is Using a Rope to Pull a Box

question 56

Multiple Choice

A girl is using a rope to pull a box that weighs 350 N across a level surface with constant velocity.The rope makes an angle of 30° above the horizontal,and the tension in the rope is 100 N.What is the normal force of the floor on the box?

• A) 400 N
• B) 250 N
• C) 450 N
• D) 300 N
• E) ​263 N

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